Dust-collector.



F. WEGNER.

DUST COLLECTOR.

, APPLICATION man APR.22. 1916.

Patented July 4, 1916.

FREDERICK A. WEGNER, 0F SILVER CREEK, NEW YORK.

DUST-COLLECTOR.

Specification of Letters Patent.

Patented July 4, 1916.

Application filed April 22, i916. serial No. 92,893.

To all whom t may concern f Be it known that I, FREDERICK A. 'lVEG NER, a citizen of the United States, residingat Silver Creek, in the county of Cattaiaugus and State of New York, have invented certain new and useful Improvements in' Dust-Collectors,

of which the following is a. specification.

This invention relates to dust collectors in which dust or other matter held in suspension in air is separated'therefrom by the rapid whirling of the laden air in a separating chamber.

-The invention subject of thepresent ap-4 plication is in the nature of improvements upon the invention subject of an application tiled by me March 2, 1916, Serial Number 81,696, and the broad objects of the present invention comprise. the same objects as the application referred to, such objects being to provide a machine of the character specilied in which entrance of dust laden air into the air outlet is practically 'eliminated7 and the separating action is rendered thoroughly effective.

Machines of this general description have long'been in use in thisiart but in their use many difliculties and objections lhave been encountered. The drum is usually composed of an upper cylindrical portion and a lower conical portion, the cylindrical portion being provided with a deck or cover in which is a suitable opening for the escape of air and the conical portion .being provided at its lower end,.or apex, with a suitable opening for the escape of dust.

In theair escape opening a tubularv guardV or air escape tube has'been'mounted and it has been found that owing to the whirl or vortex made by the air, that the tubular guard, in order that it shall offer the least obstruction to the escaping air, should be located eccentrically with relation to the axis of the deck, and machines of this class have been constructed with many movable parts, for thisl purpose which are liable to dislocation and disarrangement.

In successful machinesof the character specified, the laden air under pressure, gen'- erally by means of a fan, is introduced tangentially into one side of the separating p chamber and travels in a circular path in contact with .the walls of the chamber, unt-ilA nearly a complete revolution is made, when the air from the tangential entrance 1s encountered which acts as a barrier tothe -to an)v of these objections.

further true circular travel in the saine plane and the natural force of gravity also acts to cause the current of laden air to drop lower into the chamber. Under these iniuences, the current of air whirling around in the chamber, tends, when, lat the end of the 4 lirst complete revolution, it encounters the incoming airat the entrance as stated, tol pass around partially below the first circle -of air, and the continued whirling of the air gradually passes tolower planes thereby forming a whirl or vortex of such air, of substantially the form of an inverted cone.

Owing to the obstruction of the current at the entrance the vortex or cone of whirl-V ing air isforced somewhat laterally, so that its axis becomes eccentric to that of the chamber and if the discharge outlet for the purified air is central, or concentric with the axis of the chamber, the function, ofseparating will be interfered with by the encounter of the air of the eccentric vortex with the concentric walls of the air outlet. It is therefore necessary that means be provided for causing the axis of the tubular guard or air outlet tube toregister with the axis of the vortex of whirling air. Many unsuccessful or only partially successful efforts have been made to accomplish this object, and one means for doing this is shown in another former application filed by me March 3, 1910, Serial Number 81,695.

4dt has further been found in machinesv of this class that in order to prevent the dis-` agreeable buckling and in and out snapping movement of the deck, owingto its size and due to the varying pressure of the inner air against it, that the deck must be either made of veiv heavy metal, or of wood, both of which are objectionable in many respects.

lt is the general object of the present invention to overcome the difliculties enuiiierated,' and to provide an improved machine of this classa which will not be open A. specific object of the invention is to provide 'means whereby, when the proper vlocation of the air escape has beendetermined, and the deck secured in position, no further adjustment of the air escape will be necessary and all movable parts of the deck for such adjustment will be eliminated.

A further object of the invention is to provide means whereby, in amachine of this character, the deck maybe made of light- 'weight, and of cheap metal'which at the( which will be hereinafter fully described# and' afterward specifically claimed.

vpurilied air escapes,

in order that the construction and operation thereof' may be readily comprehended, l have illustrated in approved embodiment ot' .my invention in the accompanying drawings and will now proceed -to Ifully and speciticallydescribe the same, having refer ence to said drawings, in which- Figure 1 represents a vertical sectional view with the lower conical portion of the separating chamber broken away, in part; F 2, a top plan view, and Fig. 3, a partial central vertical sectional view with the tubular guard pr exhaust air tubevin a different adjustment from that of Fig. 1.

Like reference Characters indicate the ings.

Referring to the drawings, A denotes the separating chamber, which comprisesv the usual upper cylindrical portion .1, and a lower tapered or conical portion 2, termihating at its lower endin the usual dust discharge opening, not shown; The upper Cylindrical portion .is provided withthe 'usual tangential inlet passage 3, for the dust laden air, shown in dotted lines in Fig. 1, and fl represents the tubular guard or air exhaust tube forming an outlet through which the T he top or deck 5 of thecollector is of'the' usual sheet metal construction, having an' opening therein concentrically disposed relative to tthe laxis of the collector, within which opening is *supported the tubular guard, to which reference has heretofore been made. This tubular guard is con structed in two main-parts, namely, an upper portion G yextending without the casing or receptacle, and a lower portion 7, depending from the top of the collector and projecting withinthe. separating chamber.

l make the deck 5 of a thin sheet of metal and attach thereto by any suitable means, the tubular guard of which the portion (3 projects above the deck and the portion 7 below the deck and in'to the interior of the chamber 1.

Angle Viron bars 8 have their horizontal portions secured to the deck 5 by means of bolts or rods 9 and their vertical portions` secured to the tubular guard by means of..

iaeoai boltsfor rods 10, thereby rigidly securing the tubular guard to 'the deck.

An inverted cone l1 oi" thin sheet metal,

surrounds the portion 7A of the tubular guard, being zsecured by any preferred means, at its upper and lower ends, to the under side of the deck 5 and the lower outer edge ot' the portion l .of the tubular guard.

l/Vithin therportion 'l' out the tubular guard, adjacent to its-lower end, l mount an auxiliary portion er extension 12 of the tubular guard by providing'it'rwith pivots l?) projeeting diametrically on opposite sides and adapted to engage the lower edge ot the portion 7 nomatter in what' position said eX- tension may be tnineud asia/ily with relation to the port-ion 7. rlhe extension 12 oi the tubular guard has its'upper portion, which carries the pivots 13, normally 'concentric with the parts 6 and 7 but adjustable on said pivots, and separated from the part 7 by a flexible packing 14 but the lower portion or' said extension is slightly inclined out ot the axial line to accommodate the normal eccentricity of the axis of the vortex ot the whirlin 0' air and the whole extension is adjustable to accommodate any further eccentricity ot' said -vortex axis which may be found to exist,

by means lnow to be described saine. parts 1n all of the figures of thedrawj A frusto-conical member is arranged in thebupper portion ot the. tubular guard, being supported therein by means ot' a peripheral flange 16 which rests on a circular bracket 17 secured within the portion (l ot' the tubular guard. The member 15, within the walls of the tubular guard, forms an auxiliary dust chamber, the dust=collected therein being conveyed to' suitable place of discharge through a tube 1S, such construction being described and ,claimed in my y co-pending applications hereinbetore mentioned. s

Within the rusto-conical'member 15 and extending transversely across the same, is a strutl or bar 19 which is bolted or otherwise secured at its ends to the walls ot said member,- a smaller strut or bar 20 being provided Withinthe extension 12 or' the tubular guard, said strut 20 extending transversely acrossthe extension and being pivoted or otherwise secured at. its ends tothe wallslojl said extension. Extending through perforations eccentiically located in these struts with -regard to the conical member, are rods or bolts 21 and 22 by ineans'of which the two portions of the tubular guard may be drawn toward each other and the pivots 13 held in contact with the lower edge of the portion 7., By lowering one ci' these rods and raising the other, the exteny sion 12 may be tilted on said pivots i3 so asl llt to throw the lower and or' the extension 12 into a more inclined Aj oosition and farther out ot' axial alinement with the chamber 1 in order to accommodate an increased eccen tricity which may be discovered in the aXis of the vortex of the whirling air. This lat# eral pivotal adjustment of the extension may be made in any dianietrical line by turning the frusto-conical member on the liange 17 of the tubular guard, carrying with it the extension l2 and its supporting rod or struts and changing the diametric position of the pivots 13.

IVhile I have specifically described the construction and arrangement of the various parts embodied in my invention as herein illustrated, I desire it to be understood .that I do not conne myself rigidly thereto, for t-lie reason that changes and variations might be made therein, without departing from the spirit and scope'of the invention, as hereinafter claimed.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent 0f the United States isl. A dust collector of the cyclone type comprising a separating chamber and a deck therefor, a tubular guard mounted in said deck and an extension on said tubular guard pivotally connected to the guard within said I chamber.

`2. A dust collector of the cyclone type comprising a separating chamber and a deck therefor, a tubular guard mounted in said deck and an extension on saidA tubular guard axially. adjustable with reference to the guard.

3. A dust collector of the cyclone type comprising a separating chamber and a deck therefor, a tubular guard mounted in saidv deck and an extension on said tubular guard axially `adjustable with ,reference to the guard and pivotally adjustable thereon.

4. A dust collector of the cyclone type comprising a separating chamber, a deck therefor 'of ylight weight sheet metal provided witli an air `escape opening, a tubular guard mounted in said opening and projecting above the deck, and parallel Vertical transverse truss rods secured to the deck and bearing against opposite sides of the. tubular guard.

5. A dust collector 0f the cyclone type comprising a separating chamber, a deck therefor' of light weight sheet metal having an air escape opening, a tubular guard mounted in. said opening and projecting .above the deck, and transverse truss rods comprising vertical portions secured to the .opposite sides of the tubular guard and horizontal,flanges secured to the top of tlievdeck. G. A dust collector of the cyclone type comprising a sel'iarating chamber, a deck tlieiiel'or,"a tangential entrance to the upper part -of the separating chamber for dust Copies of 'this patent may be obtained for ve centi eaqh, by addressing tha laden air, a tubular guard mounted in the extending downwardly and inwardly from the deck in position to receive the impact of the incoming dust laden air.

7. A dust collector of the cyclone type comprising a separating chamber and a deck therefor, a tubular guard mounted in the deck, a circular bracket within said guard, .a frusto-conical member supported on said bracket, an extension on Athe tubular guard within the chamber, transverse struts With-l in the frusto-conical member and the eX- tension, and adjustable supportingrods connecting .the struts.

8. A dust collector of the cyclone type comprising a. separating chamber and a deck therefor, a tubular guard mounted in the deck, a circular bracket within said guard, a frusto-conical member supported on said bracket, an extension on the tubular guard within the chamber, transverse strutswithin the frusto-conical member and the extension and adjustable supporting 'rods conlnectingthe struts, the extension having diafrusto-coiiical member and the extensionh pivots projecting diametrically from the eX- tension and adapted to engage the lower edge of the tubular guard, and vsupporting rods or bolts connecting the two struts on the opposite sides of the diametrical line of the pivots ofl the extension.

l0. A dust collector of the cyclone type comprising a separating chamber and a deck therefor, a tubular guard mounted in the deck, a' circular bracket within said guard, a frusto-conical member supported on said bracket, an extension on the tubular guard within the chamber, transverse struts within the frusto-conical member and the eX- tension, and adjustable supporting rods connecting the struts, the extension having diainetrically projecting rods adapted to engage the lower edge of the tubular guard.

In testimony whereof I aflix my signature.

FREDERICK A. WEGNER.

Connminer at Intenta,

Washington, D. 0." 

